Home / 119,733.21-165,232.98-66,020.40

Finding the Fourth Proportional to 119,733.21, 165,232.98 and 66,020.40

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Solution

The fourth proportional to 119,733.21, 165,232.98 and 66,020.40 is: 91,108.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,733.21 : 165,232.98 = 66,020.40 : x
  2. Step 2: Convert to fraction form
    119,733.21/165,232.98 = 66,020.40/x
  3. Step 3: Cross multiply
    119,733.21x = 165,232.98 × 66,020.40
  4. Step 4: Simplify right side
    119,733.21x = 10,908,747,432.79
  5. Step 5: Solve for x
    x = 10,908,747,432.79/119,733.21
  6. Step 6: Final answer
    x = 91,108.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.